Solar cell conveying graphite boat

Abstract

The utility model belongs to the technical field of solar cells, and particularly relates to a solar cell conveying graphite boat which comprises a first fixing wall and a second fixing wall which are arranged side by side, and two groups of connecting structures are arranged between the first fixing wall and the second fixing wall. A tightening structure is mounted between the first fixing wall and the second fixing wall; by arranging a telescopic integral structure, compact and parallel arrangement of silicon wafers can be realized during sintering, and when cooling is needed during sintering, the distance between a first fixing wall and a second fixing wall is expanded, and a first spring is expanded, so that the distance between adjacent limiting frames is expanded, and meanwhile, a fixing plate is separated from a bottom hole; the space between every two adjacent silicon wafers is increased, and the air holes in the bottom of the limiting frame are opened, so that air flow can be more convenient, cooling is accelerated, and the heat dissipation effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of solar cell sheets, in particular to a graphite boat for conveying solar cells. Background Art

[0002] Solar cells are a type of photoelectric semiconductor wafer that uses sunlight to generate electricity directly. Its working principle is based on the photovoltaic effect of semiconductor PN junction. In the existing solar cell production process, silicon wafers need to be sintered, and graphite boats are used to carry them during sintering.

[0003] The cell graphite boat is a tool used in the production process of solar cells. The graphite boat contains a large amount of graphene material. This material has a high conductivity and can form an electron conduction channel between electrodes. When external current passes through the graphite boat, electrons will be freely conducted between the graphene layers, thereby realizing the storage and release of electrical energy.

[0004] The existing graphite boat is a solid structure. When in use, due to its poor air permeability and the solid structure of the main body, the heat dissipation effect is poor, which affects the cooling effect of the battery silicon wafer. The cooling time is long and the stagnation time is long, which affects the processing efficiency. Therefore, a solar cell conveying graphite boat is proposed to address the above problems. Utility Model Content

[0005] In order to make up for the shortcomings of the prior art, the existing graphite boat is a solid structure. When in use, due to its poor air permeability and the solid structure of the main body, the heat dissipation effect is poor, which affects the cooling effect of the battery silicon wafer. The utility model proposes a solar cell conveying graphite boat, by expanding the distance between adjacent limit frames, and at the same time the fixing plate is separated from the bottom hole, the space between two adjacent silicon wafers is increased, and the air holes at the bottom of the limit frame are opened, which can facilitate gas flow, accelerate cooling, and improve the heat dissipation effect.

[0006] The technical solution adopted by the utility model to solve the technical problem is a solar cell conveying graphite boat, comprising a first fixed wall and a second fixed wall, the first fixed wall and the second fixed wall are arranged side by side, two groups of connecting structures are arranged between the first fixed wall and the second fixed wall, and a tightening structure is installed between the first fixed wall and the second fixed wall;

[0007] A connecting structure, the connecting structure comprising a shrinkable tube, movable holes are opened inside the two ends of the shrinkable tube, movable rods are movably inserted in the movable holes, and a first spring is fixedly connected between one end of the movable rod and the movable hole wall of the shrinkable tube;

[0008] A limiting frame is fixedly connected between two shrinkable tubes arranged in parallel along the X direction, a bottom hole is horizontally opened at the bottom of the limiting frame, and a vent hole is vertically opened at the bottom of the limiting frame;

[0009] The fixed plate has two movable rods arranged in parallel along the X direction, and support frames are respectively fixed on them, and the fixed plate is fixedly connected between the two support frames.

[0010] Preferably, a fixing plate is provided between two adjacent limiting frames, and the fixing plate can be movably inserted into the bottom hole at the bottom of the limiting frame.

[0011] Preferably, the tightening structure includes a first tightening rod and a second tightening rod, the first tightening rod is fixed on the first fixed wall, and the second tightening rod is fixed on the second fixed wall, wherein the second tightening rod is provided with a slot, and the end of the first tightening rod is provided with a socket, a clamping plate is inserted into the socket, and the clamping plate and the slot are mating components.

[0012] Preferably, a positioning hole is provided on the first tightening rod, a positioning rod is movably installed in the positioning hole, a movable plate is fixed to the top of the clamping plate, the top of the positioning rod is fixed to the bottom side of the movable plate, a second spring is fixed between the movable plate and the top side of the first tightening rod, a mounting hole is provided in the second fixed wall, a swing rod is rotatably installed in the mounting hole, a connecting rod is fixed between the two swing rods, and the other end of the swing rod is located on the side of the clamping slot, so as to cooperate with the tightening operation of the overall structure.

[0013] Preferably, the side walls of the limiting frame are provided with separation holes at equal intervals, which can increase the empty surface of the silicon wafer and accelerate the cooling speed.

[0014] Preferably, a damping sleeve is provided at the end of the movable rod, and the outer wall of the damping sleeve is in close contact with the movable hole arm in the shrink tube, which can prevent the distance between the first fixed wall and the second fixed wall from expanding slowly and avoiding rapid ejection.

[0015] The utility model is beneficial in that:

[0016] The utility model provides a retractable overall structure, so that the silicon wafers can be compactly arranged in parallel during sintering. When the sintering needs to be cooled, the distance between the first fixed wall and the second fixed wall is expanded, and the first spring expands, so that the distance between adjacent limit frames is enlarged. At the same time, the fixed plate is separated from the bottom hole, the space between two adjacent silicon wafers is increased, and the air holes at the bottom of the limit frame are opened, which can facilitate gas flow, accelerate cooling, and improve the heat dissipation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0018] Figure 1 is a schematic diagram of the overall first three-dimensional structure;

[0019] Figure 2 It is a schematic diagram of the overall half-section three-dimensional structure;

[0020] Figure 3 To tighten the structural diagram;

[0021] Figure 4 It is a schematic diagram of the overall top view structure;

[0022] Figure 5 for Figure 4 Sectional structure diagram along AA;

[0023] In the figure: 1. first fixed wall, 2. second fixed wall, 3. limiting frame, 4. tightening structure, 5. fixed plate, 6. movable rod, 7. support frame, 8. shrink tube, 9. first spring, 31. bottom hole, 32. partition hole, 41. first tightening rod, 42. second tightening rod, 43. positioning rod, 44. second spring, 45. movable plate, 46. clamping plate, 47. swing rod, 48. clamping slot, 49. mounting hole, 410. connecting rod. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 As shown, a solar cell conveying graphite boat comprises a first fixed wall 1 and a second fixed wall 2, wherein the first fixed wall 1 and the second fixed wall 2 are arranged side by side, two groups of connecting structures are arranged between the first fixed wall 1 and the second fixed wall 2, and a tightening structure 4 is installed between the first fixed wall 1 and the second fixed wall 2;

[0026] A connecting structure, the connecting structure comprising a shrink tube 8, movable holes are opened inside the two ends of the shrink tube 8, movable rods 6 are movably inserted into the movable holes, and a first spring 9 is fixedly connected between one end of the movable rod 6 and the movable hole wall of the shrink tube 8;

[0027] The limiting frame 3 is fixedly connected between two shrink tubes 8 arranged in parallel along the X direction, a bottom hole 31 is horizontally opened at the bottom of the limiting frame 3, and a vent hole is vertically opened at the bottom of the limiting frame 3;

[0028] A fixed plate 5, two movable rods 6 arranged in parallel along the X direction are respectively fixed with support frames 7, the fixed plate 5 is fixedly connected between the two support frames 7, the side wall of the limit frame 3 is provided with separation holes 32 at equal intervals, the end of the movable rod 6 is provided with a damping sleeve, and the outer wall of the damping sleeve is closely attached to the movable hole arm in the shrink tube 8;

[0029] In the existing solar cell production process, silicon wafers need to be sintered. During sintering, a graphite boat is used for support. After sintering, better ventilation and cooling are required. When the graphite boat is used, the silicon wafer is placed in the placement groove in the limit frame 3. During sintering, the distance between the first fixed wall 1 and the second fixed wall 2 can be reduced by compression. The two ends of the movable rod 6 are respectively retracted into the movable holes of the two shrinkage tubes 8 to achieve compression of the first spring 9. A fixed plate 5 is arranged between two adjacent limit frames 3. The fixed plate 5 can be movably inserted into the bottom hole 31 at the bottom of the limit frame 3. The side of the fixed plate 5 is inserted into the bottom hole 31 at the bottom of the limit frame 3 to achieve blocking of the bottom of the limit frame 3. Multiple limit frames 3 are arranged in parallel by shrinkage and extrusion at the first fixed wall 1 and the second fixed wall 2;

[0030] After sintering, when cooling is required, the distance between the first fixed wall 1 and the second fixed wall 2 expands, and the first spring 9 expands, so that the distance between adjacent limit frames 3 is enlarged. At the same time, the fixed plate 5 is separated from the bottom hole 31, and the space between two adjacent silicon wafers is increased. The air holes at the bottom of the limit frame 3 are opened, which can facilitate gas flow, accelerate cooling, and improve heat dissipation.

[0031] The tightening structure 4 includes a first tightening rod 41 and a second tightening rod 42, wherein the first tightening rod 41 is fixed on the first fixed wall 1, and the second tightening rod 42 is fixed on the second fixed wall 2, wherein a card slot 48 is provided on the second tightening rod 42, and an insertion hole is provided at the end of the first tightening rod 41, and a card plate 46 is inserted into the insertion hole, and the card plate 46 and the card slot 48 are matching components.

[0032] A positioning hole is provided on the first tightening rod 41, and a positioning rod 43 is movably installed in the positioning hole. A movable plate 45 is fixed to the top of the clamping plate 46, and the top of the positioning rod 43 is fixed to the bottom side of the movable plate 45. A second spring 44 is fixed between the movable plate 45 and the top side of the first tightening rod 41.

[0033] The second fixed wall 2 is provided with a mounting hole 49, in which a swinging rod 47 is rotatably mounted, a connecting rod 410 is fixedly connected between the two swinging rods 47, and the other end of the swinging rod 47 is located at the side of the clamping groove 48, so that when the spacing between the first fixed wall 1 and the second fixed wall 2 is tightened during sintering, the first tightening rod 41 and the second tightening rod 42 slide relative to each other, and when the clamping plate 46 slides to the clamping groove 48, the movable plate 45 can ensure that the bottom side of the clamping plate 46 is inserted into the clamping groove 48 under the action of the second spring 44, so as to ensure that the first fixed wall 1 and the second fixed wall 2 are tightened and fixed;

[0034] When cooling the silicon wafer, the connecting rod 410 is pressed to realize the swinging of the swing rod 47. When the swing rod 47 swings, one end of the movable plate 45 can be lifted up. After being lifted up, the clamping plate 46 is separated from the clamping groove 48. Under the expansion operation of multiple first springs 9, the distance between the first fixed wall 1 and the second fixed wall 2 can be expanded. The distance between the first fixed wall 1 and the second fixed wall 2 is expanded, thereby increasing the gas flow space between the silicon wafers and facilitating the cooling operation of the silicon wafers.

[0035] In the description of this specification, the basic principles, main features and advantages of the utility model are shown and described above. For those skilled in the art, they can still modify the technical solutions recorded in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the utility model shall fall within the scope of the utility model claimed for protection.

Claims

1. A graphite boat for transporting solar cells, characterized in that: include: A first fixed wall (1) and a second fixed wall (2), wherein the first fixed wall (1) and the second fixed wall (2) are arranged side by side, two groups of connecting structures are arranged between the first fixed wall (1) and the second fixed wall (2), and a tightening structure (4) is installed between the first fixed wall (1) and the second fixed wall (2); A connection structure, the connection structure comprising a shrinkable tube (8), movable holes are provided at both ends of the shrinkable tube (8), movable rods (6) are movably inserted into the movable holes, and a first spring (9) is fixedly connected between one end of the movable rod (6) and the wall of the movable hole of the shrinkable tube (8); A limiting frame (3), wherein the limiting frame (3) is fixedly connected between two shrinkable tubes (8) arranged in parallel along the X direction, a bottom hole (31) is horizontally opened at the bottom of the limiting frame (3), and an air vent is vertically opened at the bottom of the limiting frame (3); A fixed plate (5) is provided with two movable rods (6) arranged in parallel along the X direction, on which support frames (7) are respectively fixed, and a fixed plate (5) is fixedly connected between the two support frames (7).

2. A solar cell transport graphite boat according to claim 1, characterized in that: A fixing plate (5) is arranged between two adjacent limiting frames (3), and the fixing plate (5) can be movably inserted into a bottom hole (31) at the bottom of the limiting frame (3).

3. A solar cell transport graphite boat according to claim 1, characterized in that: The tightening structure (4) comprises a first tightening rod (41) and a second tightening rod (42), wherein the first tightening rod (41) is fixed on the first fixed wall (1), and the second tightening rod (42) is fixed on the second fixed wall (2), wherein a card slot (48) is provided on the second tightening rod (42), and an insertion hole is provided at the end of the first tightening rod (41), and a card plate (46) is inserted into the insertion hole, and the card plate (46) and the card slot (48) are matching components.

4. A solar cell transport graphite boat according to claim 3, characterized in that: A positioning hole is provided on the first tightening rod (41), a positioning rod (43) is movably installed in the positioning hole, a movable plate (45) is fixed to the top end of the clamping plate (46), the top end of the positioning rod (43) is fixed to the bottom side of the movable plate (45), and a second spring (44) is fixed between the movable plate (45) and the top side of the first tightening rod (41).

5. The solar cell transport graphite boat according to claim 3, characterized in that: A mounting hole (49) is provided in the second fixed wall (2), a swing rod (47) is rotatably mounted in the mounting hole (49), a connecting rod (410) is fixedly connected between the two swing rods (47), and the other end of the swing rod (47) is located on the side of the slot (48).

6. A solar cell transport graphite boat according to claim 5, characterized in that: The side wall of the limiting frame (3) is provided with partition holes (32) at equal intervals.

7. The solar cell transport graphite boat according to claim 5, characterized in that: A damping sleeve is provided at the end of the movable rod (6), and the outer wall of the damping sleeve is in close contact with the movable hole arm in the shrink tube (8).

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